Question

What is dew point depression?

(a) Difference between dry bulb temperature and dew point temperature of air

(b) Difference between wet bulb temperature and dew point temperature of air

(c) Difference between relative humidity and dew point temperature of air

(d) Difference between wet bulb depression and dew point temperature of air

I got this question during an interview.

My question comes from Drying in division Drying of Food Processing Unit Operations

Answer 1

Right option is (a) Difference between dry bulb temperature and dew point temperature of air

Easiest explanation: The dew point depression is defined as the difference between dry bulb temperature and dew point temperature of air. As the dew point depression deals with the moisture in the atmosphere, it is very important in forest, agricultural and particularly in forecasting wildfires.